Thor is currently stuck on earth, so he needs to borrow some money from Tony Stark. Stark lends Thor $1000 for four years at an annual simple interest rate of 5%.

A. How much will Thor owe at the end of the four years?

B. How much interest did he pay?

Jason jumped off of a cliff into the ocean in acapulco while vacationing with some friends. his height above ocean measured in feet as a function of time could be modeled by the h(t) = -16t2 + 16t + 480, where t is the time in seconds from jumping off. how high is the cliff in feet?